/* ============================================================================
   News Aggregator - Modern CSS Stylesheet
   Features: Glassmorphism, Dark Mode, Animations, Responsive Design
   ============================================================================ */

/* ============================================================================
   CSS Variables & Theme
   ============================================================================ */
:root {
    /* Colors - Light Theme */
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-hover: rgba(255, 255, 255, 0.85);
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #7a7a9a;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #a855f7);
    --border-color: rgba(255, 255, 255, 0.3);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);

    /* Category Colors */
    --politics-color: #e74c3c;
    --education-color: #3498db;
    --local-color: #2ecc71;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-hindi: 'Noto Sans Devanagari', 'Mangal', sans-serif;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-glass: rgba(26, 26, 46, 0.8);
    --bg-glass-hover: rgba(26, 26, 46, 0.95);
    --text-primary: #ffffff;
    --text-secondary: #b4b4d0;
    --text-muted: #7a7a9a;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* ============================================================================
   Base Styles
   ============================================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background var(--transition-normal), color var(--transition-normal);
}

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(168, 85, 247, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: bgPulse 15s ease-in-out infinite;
}

@keyframes bgPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-primary);
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================================================
   Typography
   ============================================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

.hindi-text {
    font-family: var(--font-hindi);
}

/* ============================================================================
   Layout
   ============================================================================ */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-2xl) 0;
}

/* ============================================================================
   Header & Navigation
   ============================================================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 2rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background: var(--bg-glass);
    color: var(--accent-primary);
}

.nav-link .icon {
    font-size: 1.1rem;
}

/* Search Bar */
.search-bar {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 250px;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    width: 300px;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-muted);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.2rem;
}

.btn-icon:hover {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    transform: scale(1.1);
}

.lang-toggle {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-toggle:hover {
    background: var(--accent-primary);
    color: white;
    border-color: transparent;
}

/* ============================================================================
   Hero Section
   ============================================================================ */
.hero {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

/* ============================================================================
   Category Tabs
   ============================================================================ */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.category-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.category-tab:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glass);
}

.category-tab.active,
.category-tab[data-category="politics"]:hover,
.category-tab[data-category="politics"].active {
    background: linear-gradient(135deg, var(--politics-color), #c0392b);
    color: white;
    border-color: transparent;
}

.category-tab[data-category="education"]:hover,
.category-tab[data-category="education"].active {
    background: linear-gradient(135deg, var(--education-color), #2980b9);
    color: white;
    border-color: transparent;
}

.category-tab[data-category="local"]:hover,
.category-tab[data-category="local"].active {
    background: linear-gradient(135deg, var(--local-color), #27ae60);
    color: white;
    border-color: transparent;
}

.category-count {
    background: rgba(255, 255, 255, 0.2);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

/* ============================================================================
   News Cards
   ============================================================================ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.news-card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    animation: fadeInUp 0.6s ease backwards;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glass);
    background: var(--bg-glass-hover);
}

.news-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-card-image img {
    transform: scale(1.1);
}

.news-card-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: white;
}

.news-card-category.politics {
    background: linear-gradient(135deg, var(--politics-color), #c0392b);
}

.news-card-category.education {
    background: linear-gradient(135deg, var(--education-color), #2980b9);
}

.news-card-category.local {
    background: linear-gradient(135deg, var(--local-color), #27ae60);
}

.news-card-content {
    padding: var(--spacing-lg);
}

.news-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.news-card-summary {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.news-card-source {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.news-card-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Featured Card */
.news-card.featured {
    grid-column: span 2;
}

.news-card.featured .news-card-image {
    height: 300px;
}

.news-card.featured .news-card-title {
    font-size: 1.5rem;
}

/* ============================================================================
   Trending Section
   ============================================================================ */
.trending-section {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
}

.section-title .icon {
    color: var(--accent-primary);
}

.view-all {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-primary);
    font-weight: 600;
}

.trending-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.trending-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.trending-item:hover {
    transform: translateX(8px);
    background: var(--bg-glass-hover);
}

.trending-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    color: white;
    font-weight: 700;
    border-radius: var(--radius-sm);
}

.trending-content {
    flex: 1;
}

.trending-title {
    font-weight: 600;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.trending-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================================================
   Article Page
   ============================================================================ */
.article-page {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.article-header {
    margin-bottom: var(--spacing-xl);
}

.article-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: white;
    margin-bottom: var(--spacing-md);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.article-image {
    width: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.article-image img {
    width: 100%;
    height: auto;
}

.article-content {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.article-summary {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-source-info {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: right;
}

.article-source-info .source-note {
    color: var(--text-muted);
    font-style: italic;
}

/* Related Articles */
.related-section {
    margin-top: var(--spacing-2xl);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* ============================================================================
   Footer
   ============================================================================ */
.footer {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================================================
   Mobile Menu
   ============================================================================ */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ============================================================================
   Loading & Animations
   ============================================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-glass) 25%, var(--bg-secondary) 50%, var(--bg-glass) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ============================================================================
   Buttons
   ============================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
}

/* ============================================================================
   Error Pages
   ============================================================================ */
.error-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl);
}

.error-code {
    font-size: 8rem;
    font-weight: 900;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.error-message {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin: var(--spacing-lg) 0;
}

/* ============================================================================
   Search Results
   ============================================================================ */
.search-results {
    padding: var(--spacing-2xl) 0;
}

.search-header {
    margin-bottom: var(--spacing-xl);
}

.search-query {
    color: var(--accent-primary);
}

/* ============================================================================
   Responsive Design
   ============================================================================ */
@media (max-width: 1024px) {
    .news-card.featured {
        grid-column: span 1;
    }

    .news-card.featured .news-card-image {
        height: 200px;
    }

    .news-card.featured .news-card-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: var(--spacing-md);
    }

    .nav-links {
        gap: var(--spacing-sm);
    }

    .search-bar {
        display: none;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .category-tabs {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: var(--spacing-md);
    }

    .article-title {
        font-size: 1.75rem;
    }

    .article-content {
        padding: var(--spacing-md);
    }

    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .logo {
        font-size: 1.2rem;
    }

    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.85rem;
    }

    .category-tab {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.85rem;
    }

    .news-card-title {
        font-size: 1rem;
    }

    .trending-section {
        padding: var(--spacing-md);
    }
}

/* ============================================================================
   Print Styles
   ============================================================================ */
@media print {

    .header,
    .footer,
    .category-tabs,
    .btn {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .news-card,
    .article-content {
        background: white;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}